US6588408B2 - Cylinder liner for diesel engines with EGR and method of manufacture - Google Patents
Cylinder liner for diesel engines with EGR and method of manufacture Download PDFInfo
- Publication number
- US6588408B2 US6588408B2 US09/954,810 US95481001A US6588408B2 US 6588408 B2 US6588408 B2 US 6588408B2 US 95481001 A US95481001 A US 95481001A US 6588408 B2 US6588408 B2 US 6588408B2
- Authority
- US
- United States
- Prior art keywords
- coating
- egr
- liner
- cylinder liner
- final
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D7/00—Electroplating characterised by the article coated
- C25D7/04—Tubes; Rings; Hollow bodies
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/02—Cylinders; Cylinder heads having cooling means
- F02F1/10—Cylinders; Cylinder heads having cooling means for liquid cooling
- F02F1/16—Cylinder liners of wet type
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/04—Electroplating: Baths therefor from solutions of chromium
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2201/00—Metals
- F05C2201/04—Heavy metals
- F05C2201/0403—Refractory metals, e.g. V, W
- F05C2201/0406—Chromium
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2253/00—Other material characteristics; Treatment of material
- F05C2253/12—Coating
Definitions
- the present invention relates generally to cylinder liners for diesel engine applications and to methods of their manufacture.
- a method according to the invention of manufacturing a cylinder liner for a diesel engine having an exhaust gas recirculation system comprises fabricating a cylinder liner of ferrous metal having an inner surface and finishing the inner surface to the desired final surface finish for guiding the piston. After final finishing, a continuous, non-porous EGR barrier coating of chromium is applied to the finished inner surface, and the liner is operated in an EGR environment of a diesel engine without any post-bonding machining of the metallic EGR coating.
- the invention has the advantage of providing a barrier coating to an otherwise conventional ferrous liner that enables the liner to operate in a corrosive EGR environment of a diesel engine without being adversely affected by the environment.
- the invention has the further advantage of providing a simple solution to the problem of how to protect a ferrous liner in an EGR diesel engine environment.
- the invention provides a post-machined coating to the otherwise final-finished liner.
- the coating is continuous and non-porous and is presented in its as-coated condition to the EGR environment. Eliminating any postcoating machining of the EGR coating ensures that the coating remains continuous and non-porous and is not disturbed so as to impair its barrier properties to the EGR environment.
- Another advantage offered by the invention is its simplicity in addressing the problem.
- the invention recognizes that careful attention to the process steps, the selection of the coating material and the preservation of the coating once applied, provides a simple but effective barrier for protecting a ferrous liner from the EGR environment of a diesel engine.
- the invention further simplifies the process of manufacturing cylinder liners by eliminating any post-coating finishing operations on the coating.
- the liner Once coated, the liner is ready to be installed in a diesel engine.
- the final finish of the inner surface of the liner and careful attention to the application of the coating provides the coated liner with the desired running surface without having to disturb the coating after it is applied.
- FIG. 1 is a diagrammatic fragmentary cross-sectional view of a diesel engine with EGR shown fitted with a cylinder liner constructed according to the invention.
- a diesel engine assembly 10 has a cylinder block 12 and a plurality of ferrous cylinder liners 14 therein.
- each cylinder liner 14 Prior to installing the cylinder liners 14 in the cylinder block 12 , each cylinder liner 14 is fabricated to include an internal surface 16 having a metallic EGR coating 18 bonded thereto.
- the metallic coating 18 serves as a barrier which protects the ferrous liner material from attack by the corrosive EGR environment.
- the inner coated surface 16 of the liners 14 provides a running surface for guiding a reciprocating piston 20 .
- the cylinder block 12 mounts a cylinder head 22 which has an intake port 24 and an exhaust port 26 .
- Exhaust gases exiting the exhaust port 26 are processed through an exhaust gas recirculation (EGR) system 30 which re-directs at least a portion of uncombusted exhaust gases back into the cylinder through the intake port 24 for combustion.
- EGR exhaust gas recirculation
- the returned exhaust vapor is characteristically acidic and corrosive to ferrous cylinder liners, but is prevented from attacking the cylinder liners 14 by provision of the metallic barrier coating 18 .
- the ferrous liners 14 are prepared by final-finishing the inner surfaces 16 prior to applying the EGR barrier coating 18 .
- the final-finishing is of such character that, once coated with the barrier coating 18 , the inner surfaces 16 need no further machining or finishing before the liners 14 are put to use in operation in the engine.
- final finish as used herein is meant to convey the level of finishing which is acceptable for a given application following application of the coating 18 .
- the coating 18 is preferably a chromium coating which is electroplate bonded onto the surfaces 16 .
- the coating 18 is non-porous and continuous such that the underlying ferrous liner material is fully shielded from exposure to the EGR environment by the overlying coating material 18 .
- the chromium material is resistant to corrosive attack by the EGR environment.
- the coating 18 is preferably thin such that the inner surface 16 of the liners 14 can be final machined to near-net dimension and then plated with the coating 18 to substantially retain and reflect the surface finish through the coating 18 and keep the inner surface 16 within the desired dimensional tolerance.
- the coating 18 preferably has a thickness of between 5-50 ⁇ m and more preferably between 10-25 ⁇ m.
- the liner is installed in the block 12 and put into operation in its as-coated condition.
Abstract
Description
Claims (7)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/954,810 US6588408B2 (en) | 2001-09-18 | 2001-09-18 | Cylinder liner for diesel engines with EGR and method of manufacture |
PCT/US2002/028936 WO2003025368A1 (en) | 2001-09-18 | 2002-09-11 | Cylinder liner for diesel engines with egr and method of manufacture |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/954,810 US6588408B2 (en) | 2001-09-18 | 2001-09-18 | Cylinder liner for diesel engines with EGR and method of manufacture |
Publications (2)
Publication Number | Publication Date |
---|---|
US20030051713A1 US20030051713A1 (en) | 2003-03-20 |
US6588408B2 true US6588408B2 (en) | 2003-07-08 |
Family
ID=25495956
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/954,810 Expired - Lifetime US6588408B2 (en) | 2001-09-18 | 2001-09-18 | Cylinder liner for diesel engines with EGR and method of manufacture |
Country Status (2)
Country | Link |
---|---|
US (1) | US6588408B2 (en) |
WO (1) | WO2003025368A1 (en) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040069262A1 (en) * | 2002-09-09 | 2004-04-15 | Kenji Mihara | Exhaust valve guide for engines |
US20040262297A1 (en) * | 2002-11-06 | 2004-12-30 | Carmo Ribeiro | Piston and method of manufacture |
US20050092739A1 (en) * | 2003-11-04 | 2005-05-05 | Carmo Ribeiro | Piston and method of manufacture |
US20050188738A1 (en) * | 2004-02-27 | 2005-09-01 | George Rauscher | Forged flange cylinder liner and method of manufacture |
US20050199196A1 (en) * | 2004-03-15 | 2005-09-15 | Miguel Azevedo | High strength steel cylinder liner for diesel engine |
US20070000468A1 (en) * | 2005-05-23 | 2007-01-04 | Miguel Azevedo | Coated power cylinder components for diesel engines |
US20080092988A1 (en) * | 2004-11-29 | 2008-04-24 | Tuomo Poutanen | Finger Joint |
US20100121322A1 (en) * | 2002-09-24 | 2010-05-13 | Endoscopic Technologies, Inc. (Estech) | Electrophysiology electrode having multiple power connections and electrophysiology devices including the same |
US20130340700A1 (en) * | 2012-06-20 | 2013-12-26 | General Electric Company | Variable thickness coatings for cylinder liners |
US11002220B1 (en) * | 2019-12-09 | 2021-05-11 | Mazda Motor Corporation | Cylinder block |
US11015549B1 (en) * | 2019-11-21 | 2021-05-25 | Mazda Motor Corporation | Cylinder block |
US11098672B2 (en) | 2019-08-13 | 2021-08-24 | GM Global Technology Operations LLC | Coated cylinder liner |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2887926B1 (en) * | 2005-06-29 | 2010-08-13 | Peugeot Citroen Automobiles Sa | CYLINDER SHAPER FOR AN INTERNAL COMBUSTION ENGINE AND BLOCK CYLINDERS EQUIPPED WITH SUCH A SHIRT |
JP5783114B2 (en) * | 2012-03-30 | 2015-09-24 | 株式会社豊田中央研究所 | Spark ignition internal combustion engine |
US10132267B2 (en) * | 2015-12-17 | 2018-11-20 | Ford Global Technologies, Llc | Coated bore aluminum cylinder liner for aluminum cast blocks |
Citations (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3657078A (en) | 1969-07-30 | 1972-04-18 | Chromium Corp Of America | Method of producing cylinder liners with different degrees of roughness in high and low pressure areas |
US3749072A (en) * | 1969-07-30 | 1973-07-31 | Chromium Corp | Internal combustion engine cylinder liners |
US3896009A (en) | 1974-05-21 | 1975-07-22 | Kioritz Corp | Aluminum alloy cylinder |
US3932228A (en) | 1973-11-01 | 1976-01-13 | Suzuki Jidosha Kogyo Kabushiki Kaisha | Metal material for sliding surfaces |
JPS58144656A (en) * | 1982-02-24 | 1983-08-29 | Toyota Motor Corp | Structure of piston of diesel engine of recirculating exhaust gas type |
US4409947A (en) * | 1980-09-04 | 1983-10-18 | Toyota Jidosha Kabushiki Kaisha | Exhaust gas recirculating type diesel engine |
US4495907A (en) | 1983-01-18 | 1985-01-29 | Cummins Engine Company, Inc. | Combustion chamber components for internal combustion engines |
US4678738A (en) | 1985-01-18 | 1987-07-07 | Mazda Motor Corporation | Manufacture of a wear-resistant sliding surface |
US4974498A (en) | 1987-03-31 | 1990-12-04 | Jerome Lemelson | Internal combustion engines and engine components |
US5287621A (en) | 1992-02-12 | 1994-02-22 | Usui Kokusai Sangyo Kaisha Ltd. | Cylinder liner manufacturing process |
US5466360A (en) | 1994-10-13 | 1995-11-14 | Robert Z. Reath | Method for preparing aluminum for subsequent electroplating |
US5566450A (en) | 1995-03-16 | 1996-10-22 | Ford Motor Company | Flexibly making engine block assemblies |
US5660704A (en) | 1994-02-21 | 1997-08-26 | Yamaha Hatsudoki Kabushiki Kaisha | Plating method and plating system for non-homogenous composite plating coating |
US5980722A (en) | 1996-10-30 | 1999-11-09 | Suzuki Motor Corporation | Plated aluminum alloy, cylinder block thereof, plating line and plating method |
US6508240B1 (en) * | 2001-09-18 | 2003-01-21 | Federal-Mogul World Wide, Inc. | Cylinder liner having EGR coating |
-
2001
- 2001-09-18 US US09/954,810 patent/US6588408B2/en not_active Expired - Lifetime
-
2002
- 2002-09-11 WO PCT/US2002/028936 patent/WO2003025368A1/en not_active Application Discontinuation
Patent Citations (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3657078A (en) | 1969-07-30 | 1972-04-18 | Chromium Corp Of America | Method of producing cylinder liners with different degrees of roughness in high and low pressure areas |
US3749072A (en) * | 1969-07-30 | 1973-07-31 | Chromium Corp | Internal combustion engine cylinder liners |
US3932228A (en) | 1973-11-01 | 1976-01-13 | Suzuki Jidosha Kogyo Kabushiki Kaisha | Metal material for sliding surfaces |
US3896009A (en) | 1974-05-21 | 1975-07-22 | Kioritz Corp | Aluminum alloy cylinder |
US4409947A (en) * | 1980-09-04 | 1983-10-18 | Toyota Jidosha Kabushiki Kaisha | Exhaust gas recirculating type diesel engine |
JPS58144656A (en) * | 1982-02-24 | 1983-08-29 | Toyota Motor Corp | Structure of piston of diesel engine of recirculating exhaust gas type |
US4495907A (en) | 1983-01-18 | 1985-01-29 | Cummins Engine Company, Inc. | Combustion chamber components for internal combustion engines |
US4678738A (en) | 1985-01-18 | 1987-07-07 | Mazda Motor Corporation | Manufacture of a wear-resistant sliding surface |
US4974498A (en) | 1987-03-31 | 1990-12-04 | Jerome Lemelson | Internal combustion engines and engine components |
US5287621A (en) | 1992-02-12 | 1994-02-22 | Usui Kokusai Sangyo Kaisha Ltd. | Cylinder liner manufacturing process |
US5660704A (en) | 1994-02-21 | 1997-08-26 | Yamaha Hatsudoki Kabushiki Kaisha | Plating method and plating system for non-homogenous composite plating coating |
US5466360A (en) | 1994-10-13 | 1995-11-14 | Robert Z. Reath | Method for preparing aluminum for subsequent electroplating |
US5566450A (en) | 1995-03-16 | 1996-10-22 | Ford Motor Company | Flexibly making engine block assemblies |
US5980722A (en) | 1996-10-30 | 1999-11-09 | Suzuki Motor Corporation | Plated aluminum alloy, cylinder block thereof, plating line and plating method |
US6508240B1 (en) * | 2001-09-18 | 2003-01-21 | Federal-Mogul World Wide, Inc. | Cylinder liner having EGR coating |
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040069262A1 (en) * | 2002-09-09 | 2004-04-15 | Kenji Mihara | Exhaust valve guide for engines |
US20100121322A1 (en) * | 2002-09-24 | 2010-05-13 | Endoscopic Technologies, Inc. (Estech) | Electrophysiology electrode having multiple power connections and electrophysiology devices including the same |
US20040262297A1 (en) * | 2002-11-06 | 2004-12-30 | Carmo Ribeiro | Piston and method of manufacture |
US20050092739A1 (en) * | 2003-11-04 | 2005-05-05 | Carmo Ribeiro | Piston and method of manufacture |
US7005620B2 (en) | 2003-11-04 | 2006-02-28 | Federal-Mogul World Wide, Inc. | Piston and method of manufacture |
US20050188738A1 (en) * | 2004-02-27 | 2005-09-01 | George Rauscher | Forged flange cylinder liner and method of manufacture |
US7726273B2 (en) * | 2004-03-15 | 2010-06-01 | Federal-Mogul World Wide, Inc. | High strength steel cylinder liner for diesel engine |
US20050199196A1 (en) * | 2004-03-15 | 2005-09-15 | Miguel Azevedo | High strength steel cylinder liner for diesel engine |
US8424577B2 (en) * | 2004-11-29 | 2013-04-23 | Tuomo Poutanen | Finger joint |
US20080092988A1 (en) * | 2004-11-29 | 2008-04-24 | Tuomo Poutanen | Finger Joint |
US7383807B2 (en) | 2005-05-23 | 2008-06-10 | Federal-Mogul World Wide, Inc. | Coated power cylinder components for diesel engines |
US20070000468A1 (en) * | 2005-05-23 | 2007-01-04 | Miguel Azevedo | Coated power cylinder components for diesel engines |
US20130340700A1 (en) * | 2012-06-20 | 2013-12-26 | General Electric Company | Variable thickness coatings for cylinder liners |
US9534559B2 (en) * | 2012-06-20 | 2017-01-03 | General Electric Company | Variable thickness coatings for cylinder liners |
US11098672B2 (en) | 2019-08-13 | 2021-08-24 | GM Global Technology Operations LLC | Coated cylinder liner |
US11015549B1 (en) * | 2019-11-21 | 2021-05-25 | Mazda Motor Corporation | Cylinder block |
US11002220B1 (en) * | 2019-12-09 | 2021-05-11 | Mazda Motor Corporation | Cylinder block |
Also Published As
Publication number | Publication date |
---|---|
US20030051713A1 (en) | 2003-03-20 |
WO2003025368A1 (en) | 2003-03-27 |
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